Table of Contents
- 1 What is hybrid organic additive technology?
- 2 What is hybrid antifreeze?
- 3 What brands are Hoat coolant?
- 4 How do I know which antifreeze to use?
- 5 What does oat mean in antifreeze?
- 6 Does oat antifreeze contain ethylene glycol?
- 7 What is the difference between Hoat and oat antifreeze?
- 8 Is Prestone an OAT?
- 9 Which is the best antifreeze for diesel engines?
- 10 Why do you need antifreeze on an aluminum engine?
What is hybrid organic additive technology?
Hybrid organic acid technology (HOAT) combines IAT and OAT with nitrites. Zerex uses ethylene glycol for freeze and boilover protection, and a hybrid organic acid corrosion inhibitor package to protect engines from liner pitting and corrosion, and protects all system metals including aluminum.
What is hybrid antifreeze?
The backbone of a hybrid coolant is based on traditional technology with the addition of organic inhibitors. Hybrid coolants contain a mix of mineral and organic inhibitors. Arteco’s hybrid coolants are free from harmful additives such as nitrites and amines.
What brands are Hoat coolant?
The Colors of Coolant
| TYPE | INHIBITOR TECHNOLOGY | VEHICLES |
|---|---|---|
| P-HOAT (Phosphated HOAT) | Phosphates & Organic Acids | Toyota, Nissan, Honda, Hyundai, KIA & other Asian vehicles |
| Si-OAT (Silicated HOAT) | Silicates & Organic Acids | Mercedes-Benz, Audi, VW, Porsche, others |
How do I know if my coolant is Hoat?
One way to know for sure if you are getting HOAT will be by the packaging. Manufacturers often refer to this anti-freeze as “global” and will indicate on the bottle that it meets or exceeds the specification “G-05” for most European cars and G-11 or G-12 for Volkswagen and Audi.
What does OAT mean in antifreeze?
Organic Acid Technology
ES Compleat™ OAT (Organic Acid Technology) is a Life-of-the-Engine organic additive fully formulated extended life Ethylene Glycol (EG) antifreeze/coolant.
How do I know which antifreeze to use?
To make sure you’re choosing the right HOAT coolant, look at the brand name, rather than the liquid’s color. The HOAT formulation is a combination of the OAT formulation and the IAT formulation. HOAT uses both silicates and organic acid to protect your engine and combat corrosion.
What does oat mean in antifreeze?
Does oat antifreeze contain ethylene glycol?
The most common older type antifreeze is Ethylene-Glycol (which is toxic) and water (EGW). The more modern antifreeze is Organic Acid Technology (OAT) which is commonly touted as being non-toxic and environmentally friendly. The most well known brand name for OAT antifreeze is “Dexcool”.
What happens if you mix Hoat and OAT coolant?
HOAT coolants, like the IAT coolants, require additives mixed back into the coolant system every 25k miles, or as specified by the engine manufacturer. HOAT coolants formulations are not compatible with OAT coolants because they do contain nitrites. They should not be mixed together.
Is Hoat and OAT coolant the same?
Organic Acid Technology (OAT) Coolant uses additives to increase its lifespan significantly — up to around 150,000 miles. Hybrid Organic Acid Technology (HOAT) Coolant is a hybrid of the two.
What is the difference between Hoat and oat antifreeze?
OAT (Figure 1) — OAT technology doesn’t use phosphates or silicate additive packages as in IAT coolants. HOAT (Figure 2) — HOAT technology contains organic acids and several inorganic additives. HOAT applications typically contain silicate. This works great for aluminum engine and cooling system components.
Is Prestone an OAT?
Prestone is an OAT coolant/antifreeze but also contains anti-corrosion ingredients to protect your cooling system.
Which is the best antifreeze for diesel engines?
Valvoline ™ ZEREX ™ G-05 ™ Antifreeze / Coolant. ZEREX ™ G-05 ™ is the automaker approved original chemistry used in newer Ford, Chrysler and Mercedes-Benz automotive and diesel engines. Its Hybrid Organic Acid Technology (HOAT) chemistry combines the best of conventional and organic acid-based chemistry to provide the ultimate protection…
Which is the best antifreeze for freeze and corrosion?
Its Hybrid Organic Acid Technology (HOAT) chemistry combines the best of conventional and organic acid-based chemistry to provide the ultimate protection against rust and corrosion. ZEREX G-05 antifreeze/coolant uses the highest quality virgin ethylene glycol for freeze and boilover protection…
How long does an organic acid coolant last?
It lasts around 30,000 miles before it turns too acidic and needs to be changed. Organic Acid Technology (OAT) Coolant uses additives to increase its lifespan significantly — up to around 150,000 miles. Hybrid Organic Acid Technology (HOAT) Coolant is a hybrid of the two.
Why do you need antifreeze on an aluminum engine?
Because most modern engines use aluminum cylinder heads, they require the protective, anticorrosive properties of antifreeze. It reduces the freezing point of the water that’s used to cool your engine.